By now, almost all the western world — and a good chunk of Asia and Africa — have all heard of Apple’s latest breakthrough product, the iPad.

The sheer number of impressions this launch has generated is in itself impressive. But what is even more impressive is the use of early adopters and key influentials to drive the story, enthusiasm, excitement and buzz for Apple, not the company itself.

Remember that Apple is not a company that is that into social media, yet check out the Twitter hashtag #ipad and end user blogs to get a sense for the mountain of coverage and interest generated for the iPad.

How does it do this? Good old-fashioned smart PR and a communications strategy that relies on the magnification effect of early adopters and influentials to amplify launch noise via traditional PR, Word of Mouth (WoM) buzz and aspirational excitement.

Here’s some of the ground rules:

1. Carefully pick and choose your hero product(s) for the year and put as much wood behind these arrows as you can. The iPad was THE launch of 2010 for Apple. The company maintains ongoing influencer relations, a thorough reviewer’s program, and ongoing engagement for other products, like their laptops, iPods, etc., but the focus was iPad and later this year iPhone OS version 4.0. That’s it. Laser-like focus, picking and backing your product bets, not spreading the wealth across a wide product range that all cry out for PR support, even though they may be close to end-of-life (EOL) and have reached the downward side of the S-curve. The other products bask in the halo of the hero products. See what the iPod did for Macintosh sales post launch? See what the iPhone has done for iPad sales?

2. Focus on long term influencer and early adopter relations and engagement. These are your natural allies. Cultivate them, let them talk for you because they ultimately carry far more weight and credibility than your own Press Releases, blog posts or advertising. Engage with not just technology influencers, but with business, social and celebrity folk that give you brand cache and style. It’s no accident that Stephen Fry is an Apple fan boy, so is half of Hollywood, thanks to decades of engagement with product placement on set and off set, with the stars themselves. Every episode of Seinfeld has a Macintosh and a small statuette of Superman in the background. Check it out next time re-run comes on. At one point, Jerry Seinfeld had a Mac too (and probably still does even though he did ads with Bill Gates last year).

So how does this translate into the iPad launch? How do these uber-strategies map with launch tactics? Well, here’s a synopsis:

The iPad launched officially on April 1, but embargoes were set for March 31. This means a wave of launch buzz and hype 24 hours prior to people being able to buy one (not counting the rumours and speculation in the prior nine months).

Key influencers were seeded with Product Verification & Testing (PVT) units three to four months out in some cases, depending on when these units were deemed stable enough and of sufficient quality to pass muster for people that will forgive non-production machine foibles because they love the technology and because they consider themselves Apple-insiders. These units went to key Apple business partners/friends (remember Google CEO Eric Schmidt got a pre-production iPhone and not so surreptitiously flashed it at Davos, where it stole the headlines rather than dry economic prognostications?), celebrities, technology gurus, etc. Also note that they all honoured the strict Apple NDAs — no insider wants to be ostracized and get thrown out of the club.

Journos/key bloggers in the US (a very select few, high impact folks) had their iPads under NDA for a week prior to launch, enough for them to play and enjoy, but not enough time for them to be too heavily critical. Launch reviews reflect that and it’s commonsense when you think about it. The shine always rubs off the shiny new toy the longer you have it. This early enthusiasm sets the tone for the launch coverage, providing the initial launch gestalt.

Celebrity Twitter-ers helped fuel the social media buzz. Stephen Fry was on the US West Coast at launch (funny how that happened) and put up video of the un-boxing of his iPad. He openly Tweeted he had one a day prior to the rest of the population. Robert Scoble did the same thing, except for the video of the unboxing (he later went out and bought two more iPads because his family kept hijacking his — and Tweeted about it). Reviews popped up the day before the official launch by Walt Mossberg and David Pogue in the US — two of the most highly respected tech journos in the country. Surgical media placement and engagement for maximum impact rather than a broad ‘hit as many as you can’ approach most companies take.

Foreign (that is, non-US) media got flown to a glitzy New York event and even if there was no pricing for their markets, they got to play with units at launch in salubrious surroundings and with high profile Apple execs. They in turn also had the opportunity if they were keen enough to buy their own units in the US, which judging by the coverage, a good few did, thereby continuing the buzz momentum.

And the result is, as you can see, a wave of initial great coverage that drives WoM, then sales and sets the tone.

More importantly its a self-reinforcing cycle of clever, surgical market engagement that fuels Apple’s mystique as a cult rather than as a technology company.

And the interesting thing is that other companies with ‘insanely’ great products could be doing the same to build their own mystique and stories. Mass communications doesn’t have to be massive, just smart.

Postscript: The iPhone OS 4.0 was announced a few days ago. Only Apple developers are supposed to have the beta code for testing. Stephen Fry, who last time I checked can’t cut a line of code, Tweeted yesterday that he had just installed it on his 3G iPhone. General availability for the masses is not expected until the northern hemisphere summer/autumn (fall).

Over the last year, location-based social networks such as Foursquare, Gowalla and Brightkite have exploded among early adopters. It’s no question—with increasing adoption of smart phone usage, location-based social networks are rising in popularity every day.

Recently covered in GigaOM, CNN, Ad Age and The New York Times, Foursquare is currently one of the most buzzed about location-based mobile social networks. Intel and Ogilvy recently used Foursquare to drive traffic to and create buzz around Intel’s offline events and activities at the Consumer Electronics Show earlier this month.

This exclusive collaboration allowed Intel to track and build relationships with online influencers active on Foursquare at CES. With more than 400 cumulative check-in’s to Intel-affiliated locations and events, the collaboration was a breakout success and proved to be an interesting event-based model for brands looking to work with Foursquare.

We interviewed Tristan Walker, head of business development at Foursquare, to learn more about their vision for what’s to come for brands, businesses and Foursquare.